Answer:
1.)The secondary purpose of this blog is to entertain readers.
2.)The primary purpose of this blog is to inform readers about seeing-eye dogs, which is what the article is all about.
3.)Entertainment is secondary because the blog also described Lexie as an adorable puppy.
Wikipedia stuff that end in .com or .org if they have an author
Looks like you omitted a couple of lines. Anyway, as for me, after reading this chorus I would say that this passage creates rather willing, joyful mood. All in all when the longtime battle has came to an end, everybody feel relieved, especially those, who gained victory. The excerpt tells us that people are going to have fun and enjoy themselves so It becomes obvious that author wanted to bring to the readers joyful mood.
Reading with a purpose is extremely important. If you read with a purpose, you get more out of it, and you understand what you are reading.
